package Puzzle_Sliding;
public interface State {
	/**
	 * Returns an iterable collection of all <code>State</code>s adjacent to
	 * this <code>State</code>.
	 * 
	 * @return a collection of all <code>State</code>s adjacent to this
	 * <code>State</code>.
	 */
	Iterable<State> getNeighbors();
}
